Design and Study of a Multi-phase Axial-flux machine

Fabrice Locment (1) , Eric Semail (1) , Francis Piriou (1)

1 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697

In this paper, a 7-phase Axial-flux Double-rotor Permanent Magnet Synchronous Machine is studied using analytical and Finite Element methods. This type of machine shows a higher sensitivity to the inductance harmonics and electromotive force (emf) compared with the 3-phase machines. So, the conventional analytical modeling method, in which only the first harmonic is taken into account, leads to significant errors in the determination of the control parameters, e.g. the frequency of Pulse Width Modulation Voltage Source Inverter. A multi-machine model explains the reasons for this sensitivity and a more sophisticated analytical method is used. Results are compared with those obtained by the 3-D FEM.

Mots clés: Axial flux machines; Finite 3D Element Method; Harmonics; Magnetostatic

Domaines: Electromagnétisme; Energie électrique

Fabrice Locment, Eric Semail, Francis Piriou. Design and Study of a Multi-phase Axial-flux machine. IEEE Transactions on Magnetics, 2006, 42 (4), pp.1427-1430. ⟨10.1109/TMAG.2006.872418⟩. ⟨hal-00876147⟩